Mobile router switching method for mobile internet service with multiple mobile routers

1. the art that the invention defined in the claims The present invention relates to a mobile router will replace method of a portable Internet service by multiple MRs structure. 2. The invention attempts to solve the technical challenges The invention to be able to allow at any one router of the multiple mobile routers (mobile router) for connecting between the portable subscriber station to move the group to the Internet as a fault occurs, the other mobile router, replace the prefix announcement of failed MRs for, that aims to provide a computer readable recording medium recording a program for realizing the mobile router replacement method for a mobile Internet service, and the method. 3. Resolution of the subject matter of the invention, The invention, according to the mobile network address setting request from the multiple portable subscriber station, sets the address to the prefix of the mobile router through multiple internal connection interface and, in a temporary position moves through the external connection interface address (care-of- after setting the address), in a set of address to the mobile router replacement method of a portable Internet service by multiple MRs structure to register with the home agent via the Internet, a mobile router failure occurs, moving the other mobile router a router a malfunction detecting step for detecting a failure by using the router advertisement intervals; Notification proxy comprising: announcement instead of the prefix of the mobile router, one via the internal connection interface of his (other mobile routers) to the other mobile router; And a binding information registration step of registering the proxy prefix binding information of said one mobile router to the home agent via the external connection interface of the other mobile router. 4. An important use of the invention, The invention yiyongdoem in portable Internet service system. Mobile Internet, a home agent, the mobile router, the mobile network prefix